Dentist&#39;s soldering-tool.



B. FISGHLER.

DENTISTS SOLDERING TOOL.

APPLICATION FILED MAR. 22, 1911.

1,01 1,597. Patented Dec. 12, 19:11.

BERNARD FISCHLER, 0F BROOKLYN, NEW YORK.

DENTISTS SOLDEBING-TOOL.

Specification of Letters Patent.

Application filed March 22, 1911. Serial No. 616,055.

To all whom it may concern:

Be it known that I, BERNARD FIsoHLnR, a citizen of the United Statesof'Ameri'ca, and a resident of Brooklyn, Kings county, New York, haveinvented certain new and useful Improvements in DentistsSoldering-Tools, of which the following is a specification.

This invention relates to a dentists soldering tool. v I

The object of the invention is to provide a practical, novel and usefulsoldering tool adapted for the use of dentists, jewelers, watchmakers orin other professions and trades.

The invention may be embodied in a device to form an attachment to apair of tweezers, or the complete tool may embody the principles anddetailed construction of the invention.

The invention will be more fully understood in connection with theaccompanying drawing in which Figure 1 shows a dentists soldering toolembodying my invention partly in section. Fig. 2 is a plan view thereof.Fig. 3 shows a modified form of the invention, and Figs. 4 5 and 6 aredetail views of the clamping means shown in Fig. 3.

Referring to Figs. 1 and 2 the reference numerals 7, 7 represent theopposed spring jaws of a pair of tweezers 8. 9 is a ring or loopencircling the jaws for keeping the same together after an article to besoldered has been inserted between them, as will be understood. 10, 10are threaded pivot posts secured to the jaws 7 and provided with locknuts or other adjustable fastening means 11, 11 and 12, 12. A jawadjusting head 13 is in threaded engagement with each of the posts 10and has a scooped out portion or cup 14 and a narrower shank 15, 15. 16are jaw levers having each an aperture 17 for the passage of the headshank 15 and a hook 18 engaging in the cup 14;. The forward ends of thejaw levers are provided with openings 19 through which pass the outerjaws 20, 20. The rear ends of the jaws 20 are bifurcated as at 21 andpass between the lock nuts 11 and 12. The jaws 20 and jaw levers 16 aremade of springy material.

When it is desired to solder pieces of metal together, for instance toadd a small piece of gold to a dental crown, or for other purposes, theone piece of metal is gripped by the jaws 7, 7 and held firmly by theloop 9, while the crown, or other piece of metal is inserted between thejaws 20 and may be brought into the exact juxtaposition with relation tothe first piece of metal in as much as the jaws 20 are adjustable by themeans described. It will be'seen that the lateral distance between thejaws 7 and 20 may be adjusted by sliding the latter on the posts 10, andby moving the heads 13 toward or away from the jaws 7, the jaws 20,through the instrumentality of the jaw levers 16 may Patented Dec. 12,1911..

be adjusted to grip the outer piece of metal I firmly. I Another featureof this invention is that the jaws 20 and jaw levers 16 may be movedhorizontally with the posts 10 as a pivot whereby I am able to effectvery delicate and exact adjustment of the surfaces of the metals to besoldered with respect to one another.

After the metals have been adjusted in the jaws a small pointed blowpipe flame may be used to solder them together.

In the modification shown in Figs. 3 and 4: the numeral 25 represents apair of tweezers of the Xtype. 26 is a post fixed to the tweezer jaw. 31is a head in threaded engagement therewith and 27 is the outer jaw. 28is a clamp having a clamping screw 29 anda pivot beam 30. The jaws 25and 27 pass through the clamp 28 above and below the pivot beam. It willbe seen that also in this'construction the outer jaws may be adjustedlaterally away from the inner jaws by either slightly moving them aroundthe posts 26 the jaws being slightly norrower than the clamp to allowfor this or by moving the clamp along the jaws 25 or by pulling the jaw27 through the clamp. The grip of the outer jaws is adjusted by movingthe heads 31 on the posts 26, whereby the jaws 27 are rocked on thepivot beams, yet are held firmly by the clamping screws 29.

In Figs. 5 and 6 there are shown upper pivot beams 32 carried by thescrews 29.

It will be seen that I have provided a simple and inexpensive toolhaving two pair of jaws, and the one pair may be adjusted laterally intwo. difierent directions with respect to the other pair and the grip ofthe one pair of jaws may be adjusted independently. A still furtheradjustment is possible and important, namely, by moving the oneadjusting head 14 or 31 farther in or out than the opposite head theouter jaws may be lifted or loweredwith respect to the inner jaws.

Change in the detailed construction may of course be made Within theprinciple of the invention.

I claim: v

1. The combination with the arms of a pair of tweezers, of a postsecured to each of the said arms, a separate jaw carried by each of thesaid posts, adjusting heads on the latter and jaw levers operated by thesaid heads for adjusting the said jaws.

2. The combination with the arms of a pair of tweezers, of a postsecured to each of the said arms, a separate jaw carried by each of thesaid post-s, means for adjusting and securing the said jaws on the saidposts, adjusting heads on the latter and jaw levers in engagement withthe said heads and the said jaws for adjusting the latter with respectto the said arms.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents,-

3. An attachment for the arm of a pair of tweezers comprising a postadapted to be secured to the said arm, a jaw secured to said post, anadjusting head on the latter and a jaw lever in engagement with the saidhead and the said jaw.

4. An attachment for the arm of a pair of tweezers comprising a postadapted to be secured to the said arm, a jaw adjustably secured to saidpost, an adjusting head on the latter and a jaw lever in engagement withthe said head and the said aw.

Signed at New York, N. Y., this 17 day of March, 1911.

BERNARD FISCHLER.

lVitnesses:

IVAN KoNIGsBERG, E. VAN ZANDT.

Washington, D. G.

